This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The number of first-year students who will decide to live in dormitories is a binomial random ... (Read 91 times)

TFauchery

  • Hero Member
  • *****
  • Posts: 500
on: Jul 24, 2018
The number of first-year students who will decide to live in dormitories is a binomial random variable X with n = 1000 and p = 0.50 . Use the normal approximation with continuity correction to approximate the probability that X will be no more than 490, P(X  490).
 a. 0.2743
  b. 0.2709
  c. 0.7291
  d. 0.7357

Question 2

A random sample of 250 third graders scored an average of 3.2 on a standardized reading test. The standard deviation was 0.95 . What is the standard error of the sample mean?
 a. 0.95
  b. 0.202
  c. 0.0038
  d. 0.060


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cswans24

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 24, 2018
Answer to Question 1

A

Answer to Question 2

D


TFauchery

  • Member
  • Posts: 500
Reply 2 on: Jul 24, 2018
Great answer, keep it coming :)

scikid

  • Member
  • Posts: 300
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Random, regular, and clumped distributions. Random, regular, and clumped distributions.
Gibbons are lesser apes, and live in the forests of south and Southeast Asia. Gibbons are lesser apes, and live in the forests of south and Southeast Asia.
Chinese workers on a railway in the far West. “Without them,” Leland Stanford, president of the Cent Chinese workers on a railway in the far West. “Without them,” Leland Stanford, president of the Cent
Students rated their grandparents on a scale from 1 to 4 based on emotional closeness, time spent ... Students rated their grandparents on a scale from 1 to 4 based on emotional closeness, time spent ...
How to use the discriminant to determine the number of roots for any quadratic equation How to use the discriminant to determine the number of roots for any quadratic equation
What would your average (mean) number of cells per cluster be? What would your average (mean) number of cells per cluster be?
Video: Primary Active Transport - electrochemical gradient and ion transport / water movement

For a complete list of videos, visit our video library